|
Radio band |
Distance & Coverage |
|
3.5MHz (80 metres) |
Generally up to 150KM during the day or up to 3000KM at night. |
|
7MHz (40 metres) |
Generally up to 1000KM during the day or world-wide at night during good conditions. |
|
21 MHz (15 metres) |
World-wide - mostly during the day. |
|
28 MHz (10 metres) |
World-wide during periods of high sunspot activity and up to 3000km in summer. |
|
144MHz (2 metres) |
Local coverage plus world-wide via digital options. |
|
432MHz (70cm) |
Local coverage, over 2000 km using something known as tropospheric ducting plus world-wide via digital options. |